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Tech Feature
Innovative Indoor
Coverage Solution for
Next-Generation GSM
Zhu Jie
Th e r a p i d d eve l o p m e n t
in wireless technologies
and complex operation
scenarios are imposing new
and innovative requirements on GSM
networks. For example, WiFi Access
Point (AP) and home gateway have
been considered optional for traditional
mobile networks. Today the meaning of
a GSM network, the most commonly
used wireless platform worldwide, has
been enriched and even overturned.
With the growing Fixed-Mobile
Convergence (FMC) trend and the
marketing of Enhanced Data rates for
GSM Evolution (EDGE) technology,
G S M n e t works a r e facing n ew
opportunities and challenges. Indoor
coverage has increasingly become a
major concern of mobile operators
12 February 2008 ZTE TECHNOLOGIES
because nearly 70% of voice traffic
comes from indoor usage of the
mobile phone and data services and
FMC applications frequently occur
indoors. To meet the rising customer
expectations for seamless coverage,
ZTE puts forward an innovative indoor
coverage solution for Next-Generation
GSM (NG-GSM).
N G - G S M h a s t h r e e m a j o r
characteristics: efficient utilization of
resources including wireless resource,
power resource and transmission
resource; software defined radio; and
customized services such as FMC to
satisfy customers’ diversified needs.
Considering the weaknesses in
traditional indoor coverage solution
(high-cost cable, high engineering cost,
inconvenient capacity expansion and
inability to provide FMC feature), ZTE
adopts a GSM Pico BTS–ZXG10 S8001
in its new indoor coverage solution,
aiming to provide very efficient, robust,
low-cost and low-power wireless
applications.
ZTE’s indoor coverage solution
supports the following functionalities:
■ EGPRS and WiFi
ZTE’s NG-GSM indoor coverage
solution supports circuit-switched voice
services including Full Rate, Enhanced
Full Rate, Half Rate, Adaptive Multi-
Rate (FR/EFR/HR/AMR); circuitswitched
data services such as 9.6 Kbps,
4.8 Kbps and 2.4 Kbps full-rate data
traffic; General Packet Radio Service
(GPRS) coding schemes (CS-1 to
CS-4) and Enhanced GPRS (EGPRS)
modulation coding schemes (MCS1 to
MCS9); and unlicensed mobile access
such as optional WiFi.
■ IP transmission
ZXG10 S8001 has IP Abis interface.
The Abis over IP brings the advantages
of lower cost and flexible networking of
IP backhaul, maximizing transmission
resource utilization.
■ Power over Ethernet
ZXG10 S8001 is a GSM BTS used
for indoor pico-cell coverage. Its power
supply is specially designed for indoor
application. It supports both GSM
EDGE Radio Access Network (GERAN)
and WiFi access. Based on the IP
Abis structure, ZXG10 S8001 can be
energized by the local AC power, lithium
battery or the Power over Ethernet (PoE)
supply.
■ Fast and easy installation
ZXG10 S8001 is the smallest
portable GSM BTS in the industry.
Because it has small size and light
weight, it is very convenient to carry and
install. It can be mounted onto a wall or
ceiling, or placed on a desk.
■ ADSL and home gateway
ZTE’s NG-GSM indoor coverage
solution offers optional choices to